Charles augtjste paillard



UNITED STATES PATENT OFFICE.

CHARLES AUGUSTE PAILLARD, OF GENEVA, SWITZERLAND.

ALLOY.

SPECIFICATION forming part of Letters Patent No. 384,709, dated June 19,1888. 7

Application filed November 23, 1887.

To all whom it may concern:

Be it known that 1, CHARLES AUGUs'rE PAILLARD, of Geneva, Switzerland,have invented a new and useful Improvement in an Alloy of Metals,ofwhich the following is a full description.

My invention relates to a metallic alloy composed of the metalshereinafter mentioned, and-it is particularly adapted to and useful inthe construction of non-magnetic compensation-balances for Watches,although it may be used for other purposes.

The object of my invention is to produce a nonmagnetic inoxidizablemetallic alloywhich shall possess the qualities of steelsuch ashardness, elasticity, and capability of being tempered-and at such aprice as will enable it to be employed in the construction of cheapcompensationbalances to be used in the more ordinary grades ofwatch-movements. This I have accomplished with my present alloy.

I have heretofore obtained patents on palladium alloysviz.,United Statespatents dated July 26, 1887, Nos. 367,158, 367,159, 367,160, and367,161; but the alloys mentioned and described in said patents are tooexpensive for use in ordinary low-grade watch-movements. I havesucceeded in producing non-magnetic compensation-balances with thispresent alloy. at about one-half the cost of the balances made from thealloys mentioned in the aforesaid patents.

Serial No. 255,998. (No specimens.)

The alloy which I have now invented is composed of the following metals,in about the proportions specified, viz: palladium, twen ty-five toforty-five parts; copper, thirty to sixty parts 5 silver, five to twentyparts; steel, two to five parts.

My presentalloy is non-magnetic, inoxidizable, elastic, hard, possessesslight dilation, and can be successfully used in compensationbalancesfor cheap watches, inasmuch as it is far less expensive than my formerpalladium alloys.

In smelting this alloy I use the same process as I fully described inmyformer patent, No. 367,159, granted July 26, 1887, and consepeat saiddescription here.

Having thus fully described my invention, WhatI claim as new, and desireto secure by Letters Patent, is-

1. An alloy composed ofpalladium, copper, silver, and steel, in aboutthe proportions stated.

2. An alloy composed of palladium, twentyfive to forty'five parts;copper, thirty to sixty parts; silver, five to twenty parts, and steel,two to five parts, substantially as described.

CHARLES AUGUSTE PAILLARD. I

Witnesses:

CHARLES WILLIs WARD, SIDNEY CALVERT SMITH.

- quently I do not regard it as necessary to re-

